Radio tube holder



Marcus, 1929 H, V, RAL, 1,?04515 RADIO TUBE HOLDER Filed April 23, 1927 Patented Man 5, 1929.

UNITED STATES PATENT OFFICE.

HENRY V'. MU, 0F BROOKLYN, NEW YORK, ASSIGNOR TO EDWIN .'BQSTIMPSON COM- i IPANY, 0F BROOKLYN, NEW YORK.

,f RADIO TUBE Homann.

Application filedl April 23, 1927. Serial No. 186,081.

the sockets being mounted on a base of in- Y sulatino' materia A chlef object is to form the sockets in asimple and eiiicient manner so that'they will be inexpensive to manufacture and w1ll at the same time give efficient results over a long period. v

The main part of cach socket 1s composed of a split tubular rivet inserted through the base and held in position by having apart thereof riveted over the rear side of the base.

'Ihe tubular rivet contacts with the prong of the tube over substantially the entire length of the latter, and since most of the Contact is resilient, an excellent electrical contact 1s maintained. 1 lVhile a preferred embodiment of the 1nvention has been disclosed for purposes of illustration, it should be understood that various changes may be made inthe structure without departing from the spirlt and scope of the invention as hereinafter set forth and claimed. y Y

In the drawings:

Fig. l is an elevation of section of panel having a tube attached thereto by the means of this invention.

Fig. 2 is a section on line 2-2 of Fig. 1.

Fig. 3 is an enlarged sectional view of the holding device.

Fig. 4 is a rear plan of the device of Fig. 3.

Referring to the drawings more specifically, the numeral 10 indicates a section of insulating panel board formed from bakelite or other suitable material.y The vacuum tube 11 has four prongs projecting from its base, and the invention relates particularly to the sockets mounted on the base and receiving the prongs of the tube.

The main part of each socket consists of a split tubular rivet 12 which ts snugly into a hole 13 formed through the panel with its head 14 engaging the face of the panel. A contact member which comprises a washer 15 and an integral projection 16 is then slipped over the rear end of the rivet and part of the material 17, from each split is bent out wardly over the contact member to hold the Pil parts rigidly in position on the panel. The ears 17 may be soldered to the washer 15 as at 18, if it is'desired. vA conductor 19 is soldered toeach of the projections 16 in order to make suitable connections with the tube.v

In certain types of tubes two of the prongs are of larger diameter than the'others in order to insure insertion of the proper prong into eachsocket, and to accommodate such a tube two of the sockets can be made larger than the remainder. In thevcase of other tubes the panel and the side of the tube may carry registration marks to guide the user in making proper locationof the prongs.

By using split tubular rivets a construction is obtained that has marked advantages of simplicity and low cost, since it is capable of convenient assembly. At the same time the socket, having a resilient inward pressure against the prong, scrapes the surface of the prong every time it is inserted in the socket and maintains an intimate contact over a relatively large portion of the length of the prong'. f

I claim 1. A socket-contact structure for cooperation with a pin-contact'such as a vacuum-tube prong, comprising a tubular socket passing through a circular hole in an insulating body and having at one end an integral fiange engaging a face of said body, the socket having a portion extending well beyond the opposite face of the bodyvand divided by longitudinal slots into two part-cylindrical segments adapted to resiliently engage the pin-contact, a washer surrounding the socket and engaging adapted to resiliently engage the pin-contact, a washer surroundlng the socket and en,g ,agingl said opposite face of the body, and integral ears bent outward from the inward ends of said slots and overlying said washer and sol-- dered thereto to retain the parts in assembled posit1on.

In testimony whereof I affix my signature.

' HENRY V. RAU. 

